I have purchased the ECM8000 and a M-Audio MobilePre USB, and I am curious as to which level of TureRTA to buy. I will be using this to set levels for each speaker, and to EQ each speaker based on my room response. Thing is, I only have a 10-band digital EQ per channel on my Denon AVR-2808. I know that Level 1 would not be useful for this application, but I wasn't sure which level would be appropriate. I would like to get the quick sweep option, so is Level 3 or 4 appropriate?